I recall a couple of small but funny open mic events from Archerfield a few years back. One student got a clearance to line up, and when he went to move from the holding point, the aircraft took a fair burst of power to move. He said "Come on you bastard!", which the controller must have assumed was directed at him.
Another student was up with an instructor, and the discussion went into more details than most would want to know about their sex lives... More red faces...
TT